136 M. T. C. Winkler on 
the genital region. The third part, which corresponds to the 
position of the branchize on each side, is simply granulate ; 
and it is probable that the region of the heart is confounded 
with it towards the posterior margin, which is sinuous, 
rounded, and marked with a double projecting line which 
follows all its contour. The author says that he does not 
know from what place this fossil comes *. 
In 1832 Hermann von Meyer published the description of 
Pemphix Sueurt under the name of Palinurus Sueurt, Meyer. 
After speaking of the description given by Desmarest and 
cited above, this author says, “‘ With this species of fossil 
Crustacean we must unite Macrourites gibbosus of Schibler, 
the remains of which have been found in the upper beds of 
the Muschelkalk. The specimen described presents some 
segments of the abdomen and the entire carapace. This 
carapace is granulate; the tubercles are of the size of a pin’s 
head; most of them occur upon the middle of the cordiform 
cephalothorax. Upon the middle of the back up to the head 
is seen a regular impressed line. The surface of the cephalc- 
thorax is covered with small tubercles ” +. 
In 1840 the same author gives a detailed description of 
Pemphix Sueurt, and especially of the furrows and tubercles 
of the carapace of that Crustacean. The abdomen consists 
of six segments and of a caudal fin, the median plate of which 
forms the seventh segment, and two of its lateral plates 
are divided longitudinally by a median line, while the 
two outer plates consist of two transverse parts. The outer 
antenne are simple, filiform, multiarticulate, and of a length 
equal to that of the whole body ; their peduncle is covered by 
a finely-striated protective scale. ‘The inner antenne consist 
of two terminal filaments, placed upon a peduncle of moderate 
length. The anterior limbs are much longer and stronger 
than the others, and bear a pincer, the body of which is stouter 
than the fingers; the latter are of equal length, conical, and 
not much curved. ‘The second pair of limbs are smaller and 
bear chele; the third pair are also provided with chele. The 
fifth pair has no chele; and the fourth is unknown f. 
Pictet, in 1854, says :—‘‘ The species of Pemphix were for- 
merly confounded with the Palinurt, from which, however, 
they differ in many respects. The carapace, instead of being 
divided only into two parts, is divided into three, of which 
the anterior corresponds to the stomachal region, the middle 
one to the greatly developed cardiac and genital regions, and 
the posterior to the branchial regions. The anterior legs, 
* Brongn. et Desm. Hist. Nat. des Crust.‘foss. p. 182. 
+ Nova Acta Nat. Cur. tom. xvi. pars 11. 
t H. von Meyer, Neue Gattungen fossiler Krebse, p. 1. 
